Administration feeding set

ABSTRACT

An administration feeding set for use with a flow control apparatus to deliver fluid from at least one fluid source to a patient. The set includes tubing for flow of fluid along a fluid pathway and a mounting member on the tubing adapted to engage the flow control apparatus. The mounting member has at least two receiving portions co-axial with the fluid pathway. The set also includes one or more identification members selectively positioned on one or more of the at least two receiving portions of the mounting member to permit identification of the administration feeding set as having a particular functional configuration different from another functional configuration.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a divisional application of pending U.S. patentapplication Ser. No. 10/853,958, filed May 25, 2004, the entirety ofwhich is hereby incorporated by reference.

FIELD OF THE INVENTION

The present invention relates to an administration feeding set adaptedto be loaded to a flow control apparatus. The present invention furtherrelates to a valve mechanism adapted to be engaged to a flow controlapparatus.

BACKGROUND OF THE INVENTION

Administering fluids containing medicine or nutrition to a patient iswell known in the art. Typically, fluid is delivered to the patient byan administration feeding set loaded to a flow control apparatus, suchas a peristaltic pump, which delivers fluid to the patient at acontrolled rate of delivery. The administration feeding set, when loadedto the flow control apparatus, comprises tubing that delivers fluid froma fluid source to a patient.

A valve mechanism may be located on the tubing for permitting orpresenting fluid flow communication through the administration feedingset. Such a valve mechanism may be automatically operated to alternatepositions that either prevent or permit fluid flow communication throughthe tubing when engaged to the flow control apparatus.

Often times it may be difficult to identify administration feeding setshaving different functional configurations for performing differentkinds of tasks since each type of administration feeding set has aphysical appearance that may be indistinguishable from other kinds ofadministration feeding sets. Accordingly, it is important that thehealthcare practitioner be able to readily identify the functionalconfiguration of the administration feeding set being loaded to the flowcontrol apparatus.

Therefore, there is a need for an administration feeding set having ameans for identifying the functional configuration of the feeding setand having a valve mechanism that can prevent disengagement of theadministration feeding set loaded to the flow control apparatus.

SUMMARY OF THE INVENTION

In one embodiment, an administration feeding set is adapted for use witha flow control apparatus to deliver fluid from at least one fluid sourceto a patient. The administration feeding set comprises tubing for flowof fluid along a fluid pathway, and a mounting member on the tubingadapted to engage the flow control apparatus. The mounting member has atleast two receiving portions co-axial with the fluid pathway. Eachreceiving portion is adapted to receive an identification member. Theadministration feeding set also includes one or more identificationmembers selectively positioned on one or more of the at least twoco-axial receiving portions of the mounting member to permitidentification of the administration feeding set as having a particularfunctional configuration different from another functionalconfiguration.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of an embodiment of the administrationfeeding set according to the present invention;

FIG. 2A is a side view of the administration feeding set loaded to aflow control apparatus according to the present invention;

FIG. 2B is a side view of an embodiment of a flow control apparatusprior to loading the administration feeding set thereto according to thepresent invention;

FIG. 3A is a partial perspective view of an embodiment of the valvemechanism shown in the feeding position according to the presentinvention;

FIG. 3B is a partial perspective view of the embodiment of the valvemechanism shown in the flushing position according to the presentinvention;

FIG. 3C is a perspective view of the embodiment of the valve mechanismshown in the blocking position according to the present invention;

FIG. 4 is a side view of the embodiment of the valve mechanism accordingto the present invention;

FIG. 5 is an end view of the embodiment of the valve mechanism accordingto the present invention;

FIG. 6 is a cross-sectional view of the embodiment of the valvemechanism taken along line 6-6 of FIG. 5 according to the presentinvention;

FIG. 7 is a cross-sectional view of the embodiment of the valvemechanism taken along line 7-7 of FIG. 4 according to the presentinvention;

FIG. 8 is a cross-sectional view of the embodiment of the valvemechanism taken along line 8-8 of FIG. 4 according to the presentinvention;

FIG. 9 is an opposing end view of the embodiment of the valve mechanismaccording to the present invention;

FIG. 10 is a bottom view of the embodiment of the valve mechanismaccording to the present invention;

FIG. 11A is a perspective view of an alternative embodiment of the valvemechanism shown in the feeding position according to the presentinvention;

FIG. 11B is a perspective view of the alternative embodiment of thevalve mechanism shown in the blocking position according to the presentinvention;

FIG. 12 is a diagram of an embodiment of the mounting member withidentification members attached to the lower and upper portions thereofaccording to the present invention;

FIG. 13 is a diagram of an embodiment of the mounting member with anidentification member attached only to the lower portion thereofaccording to the present invention;

FIG. 14 is a diagram of an embodiment of the mounting member with anidentification member attached only to the upper portion thereofaccording to the present invention;

FIG. 15 is a diagram of an embodiment of the mounting member with theidentification members attached to the upper and lower portions andfurther illustrating the related sensor devices according to the presentinvention;

FIG. 16 is a diagram of an alternative embodiment of a mounting memberwith identification members attached to upper, middle and lower portionsaccording to the present invention;

FIG. 17 is a simplified block diagram illustrating the various systemsrelated to the administration feeding set loaded to the flow controlapparatus according to the present invention; and

FIG. 18 is a flow chart of the software subsystem illustrating theprocess used to detect and identify a functional configuration of anadministration feeding set adapted to be loaded to the flow controlapparatus according to the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring to the drawings, an embodiment of the administration feedingset according to the present invention is illustrated and generallyindicated as 10 in FIG. 1. This embodiment comprises an administrationfeeding set 10 adapted to be loaded to a flow control apparatus 12suitable for delivery of fluid to a patient. In particular, theadministration feeding set 10 comprises tubing 60 adapted for fluid flowcommunication and further adapted to engage the flow control apparatus12 suitable for driving fluid through the tubing 60. A valve mechanism14 is in direct communication with the tubing 60 and is adapted topermit or prevent fluid flow communication through the tubing 60 whenvalve mechanism 14 is engaged to the flow control apparatus 12. Inaddition, the administration feeding set 10 comprises a mounting member16 in direct communication with the tubing 60, wherein the mountingmember 16 permits identification of the functional configuration of theadministration feeding set 10 by the flow control apparatus 12 uponengagement of the mounting member 16 to the flow control apparatus 12.The mounting member 16 also assists in the loading of the administrationfeeding set 10 to the flow control apparatus 12. As used herein, theterm load means that the valve mechanism 14 and mounting member 16 areengaged to flow control apparatus 12 and tubing 60 is placed in astretched condition between valve mechanism 14 and mounting member 16such that the administration feeding set 10 is ready for operation withflow control apparatus 12.

In another embodiment, the administration feeding set 10 is identical tothe previous embodiment with the exception that the valve mechanism 14is absent.

In yet another embodiment of the present invention there is provided anovel valve mechanism 14 adapted to be engaged to flow control apparatus12. The valve mechanism 14 is suitable for permitting or presentingfluid flow communication, as well as preventing disengagement of thevalve mechanism 14 from flow control apparatus 12 when the valvemechanism 14 is in a position that permits fluid flow communication.

Administration Feeding Set

As noted above, the administration feeding set 10 comprises tubing 60that provides a fluid pathway 61 between at least one source of fluidand a patient. Tubing 60 comprises first tubing 86 engaged between thevalve mechanism 14 and mounting member 16, and second tubing 88 engagedbetween mounting member 16 and a connector 78, such as a barbedconnector, suitable for attachment to a gastrostomy device attached to apatient. The valve mechanism 14 and mounting member 16 are adapted toengage the tubing 60 to the flow control apparatus 12. As further shown,tubing 60 further comprises third tubing 82 engaged between a feedingfluid source 21 and valve mechanism 14, and fourth tubing 84 engagedbetween a flushing fluid source 23 and valve mechanism 14, wherein thevalve mechanism 14 provides a means for permitting flow of feeding fluidor flushing fluid, or preventing fluid flow communication through tubing60.

Referring to FIGS. 2A, 2B and 17 exemplary components and systems of theadministration feeding set 10 and flow control apparatus 12 according toan embodiment of the present invention are illustrated. Flow controlapparatus 12 comprises a housing 20 that defines first and secondrecesses 22 and 24 adapted to load the administration feeding set 10 toflow control apparatus 12. A means for driving fluid through tubing 60,such as a rotor 26, is operatively engaged to and through the housing 20and is adapted to engage tubing 60. Flow control apparatus 12 furtherincludes a sensor 17 ((FIG. 15) that detects the engagement of mountingmember 16 to second recess 24 and is in operative communication with asoftware subsystem 15 as explained in greater detail below. The valvemechanism 14 and rotor 26 are operatively engaged to a gear arrangement25 driven by a single motor source 27. A suitable flow control apparatus12 is disclosed in co-pending patent application Ser. No. 10/854,136(Publication No. 2005/0267439) filed on even date herewith and hereinincorporated by reference in its entirety. However, it is understoodthat any suitable flow control apparatus 12 may be used withadministration feeding set 10.

As noted above, administration feeding set 10 comprises tubing 60engaged to valve mechanism 14 and mounting member 16 adapted for loadingthe administration feeding set 10 to flow control apparatus 12.Referring specifically to FIGS. 2A and 2B, to load the administrationfeeding set 10 to the flow control apparatus 12, the valve mechanism 14is engaged to first recess 22, the first tubing 86 then wrapped aroundrotor 26, and the mounting member 16 engaged to second recess 24 suchthat first tubing 86 is placed in a stretched condition around rotor 26and the administration feeding set 10 is ready for operation with flowcontrol apparatus 12.

As used herein, the portion of tubing 60 leading to the rotor 26 istermed upstream, while the portion of tubing 60 leading away from therotor 26 is termed downstream. Valve mechanism 14 is engaged to theupstream portion of tubing 60 at first recess 22 and controls the flowof fluid from the respective fluid source through administration feedingset 10, while the mounting member 16 is engaged to the downstreamportion of tubing 60 at second recess 24 for loading the administrationfeeding set 10 to flow control apparatus 12. In an embodimentillustrated in FIG. 1, the feeding fluid source 21 and the flushingfluid source 23 are placed in fluid flow communication with valvemechanism 14 through tubing 60 for permitting or preventing fluid flowfrom either the feeding or flushing fluid sources 21, 23. However, inanother embodiment of the administration feeding set 10, valve mechanism14 is absent and a means (not shown) for controlling fluid flow throughtubing 60 is positioned in an area other than o the administrationfeeding set 10.

Valve Mechanism

The present invention further relates to a valve mechanism 14 thatcomprises a valve body 28 having at least one inlet 30, 32 incommunication with an outlet 34 through a chamber 36 and a valve stem 38rotatably disposed in the chamber 36. The valve stem 38 has a frontportion 40 comprising a fluid pathway 44 defining at least one fluidport 46. This embodiment of valve mechanism 14 is suitable forcontrolling fluid flow.

In another embodiment, the valve mechanism 14 comprises a valve body 28having at least one inlet 30, 32 in communication with an outlet 34through a chamber 36 with the valve body 28 further comprising a slot50. Valve stem 38 is rotatably disposed in the chamber 36 with the valvestem 38 having a back portion 42 comprising a channel 48. Thisembodiment of valve mechanism 14 is suitable for preventingdisengagement of the valve mechanism 14 from the flow control apparatus12 when the valve mechanism 14 is in a position that permits fluid flow.

In yet another embodiment, the valve mechanism 14 comprises a valve body28 having at least one inlet 30, 32 in communication with an outlet 34through a chamber 36 with the valve body 28 further comprising a slot50. Valve stem 38 is rotatably disposed in the chamber 36. The valvestem 38 has a front portion 40 comprising a fluid pathway 44 defining atleast one fluid port 46 and a back portion 42 comprising a channel 48.This embodiment of valve mechanism 14 is suitable for controlling fluidflow and for preventing disengagement of the valve mechanism 14 from theflow control apparatus 12 when the valve mechanism 14 is in a positionthat permits fluid flow.

Referring to FIGS. 3-10, valve mechanism 14 is adapted to be engaged totubing 50 according to the present invention. As noted above, valvemechanism 14 comprises valve body 28 having a first inlet 30 adapted tobe in communication with the feeding fluid source 21 through thirdtubing 82 and a second inlet 32 adapted to be in communication with aflushing fluid source 23 through fourth tubing 84 for providing fluidflow communication with an outlet 34 through chamber 36 interposedbetween first and second inlets 30, 32 and outlet 34. Valve body 28further comprises slot 50 along the periphery thereof that is astructural arrangement adapted to receive a rotatable shaft 33therethrough for operating the valve mechanism 14 as shall be discussedbelow. Preferably, valve body 28 includes a tab 29 that enables the userto easily engage valve mechanism 14 to flow control apparatus 10.

As noted above, valve stem 38 has front portion 40 comprising a fluidpathway 44 that defines at least one fluid port 46 to establish fluidflow through valve body 28. Fluid flow is established when valve stem 38is rotated such that any one fluid port 46 is aligned with either thefirst or second inlets 30 and 32, thereby establishing fluid flowcommunication between first or second inlets 30, 32 and outlet 34.

Referring to FIGS. 2B, 3A-C, 6, and 17, channel 48 has opposed openings48A and 48B adapted to engage rotatable shaft 33 when engaging the valvemechanism 14 to the first recess 22 of flow control apparatus 12. Asshown, flow control apparatus 12 further comprises a gear arrangement 25operatively engaged to rotatable shaft 33 that is driven by the singlemotor source 27. The engagement between the valve mechanism 14 and therotatable shaft 33 is accomplished by rotating the valve stem 38 andorienting channel 48 such that one of the openings 48A or 48B is alignedwith slot 50 that permits the shaft 33 to be inserted into the interiorportion of channel 48. Channel 48 provides a means for preventingdisengagement of valve mechanism 14 from flow control apparatus 12 whenthe channel 48 is rotated to an orientation that misaligns the channel48 with slot 50 and places the valve mechanism 14 in a position thatpermits fluid flow communication through tubing 60.

Conversely, the valve mechanism 14 permits disengagement from the flowcontrol apparatus 12 when the channel 48 is rotated to an orientationthat aligns one of the opposed openings 48A or 48B with slot 50 andplaces the valve mechanism 14 in a position that prevents fluid flowcommunication through tubing 60. More particularly, valve mechanism 14must be placed in a blocking position that rotates valve stem 38 suchthat fluid ports 46 are in misalignment with both the first and secondinlets 30, 32 to prevent fluid flow communication in order to disengagevalve mechanism 14 from housing 20. Then the flow control apparatus 12directs rotatable shaft 33 through gear arrangement 25 to rotate valvestem 38 such that the valve mechanism 14 is placed in a blockingposition shown in FIG. 10 C, channel 48 is aligned with slot 50 whileshaft 33 is disengaged through slot 50.

According to one aspect of the present invention, valve mechanism 14 isconfigured to prevent manual operation thereof by a user such that valvemechanism 14 can be operated only when engaged to the flow controlapparatus 12. Specifically, valve stem 38 must be engaged to shaft 33 inorder to permit operation of the flow control apparatus 12, therebymaking valve mechanism 14 difficult to operate manually and particularlyuseful as a tamper-proof device.

In operation, the rotation of valve stem 38 by the rotatable shaft 33when driven by single motor source 27 prevents or permits fluid flowcommunication through administration feeding set 10 by valve mechanism14. Flow control apparatus 12 further includes a microprocessor 37 thatcontrols the rotation of valve stem 38 so that either first inlet 30 orsecond inlet 32 is in alignment or misalignment with the fluid ports 46when permitting or preventing fluid flow communication. When any one ofthe fluid ports 46 is aligned with either of the first or second inlets30, 32 fluid is permitted to flow into fluid port 46, through fluidpathway 44 and then exit out from outlet 34 as illustrated in FIGS. 3A,3B and 6. Valve stem 38 is rotated in only direction, for examplecounter-clockwise, such that the valve stem 38 rotates the fluid pathway44 in one direction only when aligning or misaligning any one of thefluid ports 46 with either first or second inlets 30, 32, therebypermitting a one-way, multiple engagement operation between the fluidports 46 and first and second inlets 30, 32 that either permits orprevents fluid flow communication. Referring specifically to FIG. 6,when valve stem 38 aligns any one of fluid ports 46 with either first orsecond inlets 30, 32, fluid flow communication is established betweeneither first or second inlets 30, 32 and outlet 34.

Based on the foregoing, when any one of the fluid ports 46 of valve stem38 is aligned with any one of the first or second inlets 30, 32 topermit fluid flow communication the channel 48 is misaligned with slot50, thereby preventing disengagement of the valve mechanism 14 from theflow control apparatus 12. When the fluid ports 46 are misaligned withthe first and second inlets 30, 32 to prevent fluid flow communicationthe channel 48 is aligned with slot 50, thereby permitting disengagementof the valve mechanism 14 from flow control apparatus 12.

Referring to FIGS. 11A and 11B, an alternative embodiment of the valvemechanism designated 14A is illustrated according to the presentinvention. Valve mechanism 14A is similar in structure and operation tothe preferred embodiment of valve mechanism 14, except there is only asingle feeding inlet 63 for providing feeding fluid through theadministration feeding set 10 from the feeding fluid source 21, ratherthan first and second inlets 30, 32 which permit both feeding andflushing functions. Accordingly, valve mechanism 14A alternates betweena feeding position (FIG. 11A) for providing fluid to a patient and ablocking position (FIG. 11B) that prevents fluid flow communication.

Administration Feeding Set Identifier System

According to another aspect of the present invention, mounting member 16assists in loading the administration feeding set 10 to the flow controlapparatus 12 and is in operative communication with software subsystem15 when engaged to second recess 24 which provides a means foridentifying the type of administration feeding set 10. As shown in FIGS.2A, and 12-17, mounting member 16 has an upper receiving portion 52 anda lower receiving portion 54 each co-axial with the fluid pathway 61 andeach adapted to receive an identification member 56 when attachedthereto. Preferably, mounting member 16 has a cylindrical shape thatconcentrically surrounds tubing 60 and surrounds the fluid pathway 61extending through the mounting member from one end to its opposite end.The mounting member 16 is configured to be engaged to second recess 24when loading administration feeding set 10 to flow control apparatus 12such that sensor 17 detects the presence of one or more identificationmembers 56 attached to mounting member 16. Sensor 17 is preferably aHall-effect sensor or other type of proximity sensor that is positionednear the second recess 24 such that sensor 17 can detect the presence ofone or more identification members 56 when the mounting member 16 isengaged to second recess 24.

When mounting member 16 is engaged to second recess 24, the attachmentof one or more identification members 56 to mounting member 16 providesa means for allowing software subsystem 15 to identify the functionalconfiguration of the administration feeding set 10 loaded to flowcontrol apparatus 12 and detected by sensor 17. Specifically, the shownin FIG. 12, mounting member 16 has at least one or more identificationmembers 56 attached thereto in accordance with an identification schemethat permits software subsystem 15 to identify the functionalconfiguration of the administration feeding set 10 loaded to flowcontrol apparatus 12. Preferably, identification members 56 attachedthereto in accordance with an identification scheme that permitssoftware subsystem 15 to identify the functional configuration of theadministration feeding set 10 loaded to flow control apparatus 12.Preferably, identification members 56 are magnetic components or, in thealternative, magnetically-susceptible metallic components capable ofdetection by sensor 17 without requiring direct physical contact withsensor 17. In order to identify the functional configuration of theadministration feeding set 10 loaded to flow control apparatus 12microprocessor 37 is operatively associated with a database 134containing one or more identification schemes for identifying differentfunctional configurations for an administration feeding set 10.

According to another aspect of the present invention, an identificationmember 56 may be attached to the upper portion 52, lower portion 54, orboth portions 52 and 54 of mounting member 16. The attachment of atleast one identification member 56 to the mounting member 16 will varyto correspond with the number of different functional configurations.Each different functional configuration for an administration feedingset 10 will have a predetermined number and location of identificationmember(s) 56 attached to mounting member 16 that identifies theadministration feeding set 10, such as feeding, flushing orre-certification, when mounting member 16 is detected by the sensor 17and this data is communicated to the software subsystem 15 throughmicroprocessor 37.

The recognition of the different number and attachment of identificationmembers 56 to mounting member 16 and the identification of the type offunctional configuration of administration feeding set 10 loaded to flowcontrol apparatus 12 is based on a two-step process. First, sensor 17detects the location and number of identification member(s) 56 whenmounting member 16 is engaged to second recess 24; and second, softwaresubsystem 15 that is in operative communication with sensor 17determines the functional configuration of the loaded administrationfeeding set 10 based on the location and number of identificationmembers 56 detected on mounting member 16 as shall be explained ingreater detail below.

Referring to FIG. 15, sensor 17, for use with an embodiment of thesoftware subsystem 15, comprises a pair of sensor devices 17A and 17Bthat detect the location and number of one or more identificationmembers 56 attached to mounting member 16. Sensor 17 can be any knowntype of proximity sensor for detecting an identification member 56,preferably a magnetic component, or in the alternative amagnetically-susceptible metallic component, attached to mounting member16. In addition, sensor 17 may also comprise any number of sensordevices with each sensor device corresponding to a portion of themounting member 16 for detecting the presence of an identificationmember 56. In one embodiment, a pair of magnetic field proximity sensorsor magnetic switch-type sensors may be provided, although the presentinvention contemplates that other types of sensors may be used, such asvarious inductive coil arrangements. Sensor 17 is positioned near tosecond recess 24 such that each sensor device 17A and 17B is positionedrelative to a corresponding portion in close proximity with mountingmember 16 when administration feeding set 10 is loaded to flow controlapparatus 12. Upon engagement of mounting member 16, sensor 17A andsensor 17B are capable of detecting the presence of an identificationmember 56 attached to the corresponding upper and lower portions 52 and54 of mounting member 16.

In particular, sensor devices 17A and 17B are positioned near the secondrecess 24 in proximity to the upper and lower portions 52 and 54 of themounting member 16 and are capable of detecting a correspondingidentification member 56 attached to portions 52 and 54, respectively.Accordingly, sensor device 17A is placed in a position to detect anidentification member 56 attached to only on upper portion 52 ofmounting member 16, while sensor device 17B is positioned to detect thepresence of an identification member 56 attached only to the lowerportion 54 of mounting member 16. As noted above, the present inventioncontemplates that a corresponding sensor device 17 is provided for eachadditional portion of mounting member 16 adapted to receive anidentification member 56.

As further noted above, software subsystem 15 provides a means forallowing the flow control apparatus 12 to identify the functionalconfiguration of administration feeding set 10 loaded to flow controlapparatus 12. FIG. 18 illustrates the sequence of steps softwaresubsystem 15 executes through microprocessor 37 to identify a functionalconfiguration of administration feeding set 10 loaded to flow controlapparatus 12 from a plurality of functional configurations. At decisionpoint 318, software subsystem 15 determines whether or not anadministration feeding set 10 is loaded to flow control apparatus 12. Ifthe administration feeding set 10 is not loaded, then at step 324 theflow control apparatus 12 remains inoperative. However, if theadministration feeding set 10 is loaded to flow control apparatus 12,the administration feeding set 10 and flow control apparatus are readyfor operation once software subsystem 15 then identifies the functionalconfiguration of administration feeding set 10 being loaded to flowcontrol apparatus 12.

When engagement of mounting member 16 is detected at decision point 318,microprocessor 37 directs the flow control apparatus 12 to display anindication of such engagement to the user. At step 320, softwaresubsystem 15 determines what functional configuration of administrationfeeding set 10 is loaded to the flow control apparatus 12 and ready foroperation.

In order to identify the functional configuration of administrationfeeding set 10, software subsystem 15 executes a series of decisionpoints 322, 326, and 328. At each of these decision points softwaresubsystem 15 compares the number and placement of identification member56 detected by sensor 17 with data stored in database 134.

At decision point 322, if sensor 17 detects an identification member 56attached to both the upper and lower portions 52, 54 of mounting member16, software subsystem 15 identifies the administration feeding set 10as having a flushing configuration. However, if an identification member56 is not detected at both the upper and lower portions 52, 54 thensoftware subsystem 15 proceeds to decision point 326. At decision point326, if sensor 17 detects an identification member 56 attached to onlylower portion 54 information retrieved from database 134 identifies theadministration feeding set 10 as having a re-certificationconfiguration. However, if sensor 17 detects an identification member 56attached only to the upper portion 52 of mounting member 16 at step 328,then software subsystem 15 determines that the administration feedingset 10 loaded to flow control apparatus 12 has a feeding configuration.

Once software subsystem 15 identifies the functional configuration ofadministration feeding set 120 loaded to flow control apparatus 12,microprocessor 37 directs that this information be displayed on userinterface 40. Thus, software subsystem 15 is able to not only detectthat the administration feeding set 10 is loaded, but also determine anddisplay the functional configuration of the administration feeding set10, such as feeding, flushing or re-certification loaded to the flowcontrol apparatus 12. However, the present invention contemplates thatalternate arrangements for placement of an identification member 56attached to upper and lower portions 52, 54 may correspond to differentfunctional configurations for administration feeding set 10.

In an alternative identification scheme shown in FIG. 16, anidentification member 56 may be attached to three different portions ofa mounting member 16A, which increases the total number of functionalconfigurations capable of being detected by the sensor 17 from three toseven configurations. The present invention further contemplates thatincreasing the number of portions on mounting member 16A for engaging anidentification member 56 increases the number of different functionalconfigurations for administration feeding set 10 that can be detectedand identified by flow control apparatus 12. Preferably, the softwaresubsystem 15 utilizes the following equation to determine the number offunctional configurations for mounting member 16:X−2^(n)−1

Wherein X is the number of potential different functional configurationsand n is the number of receiving portions along mounting member 16.

Preferably, mounting member 16A may be a concentric sleeve having atleast three separate receiving portions co-axial with the fluid pathway61, and with each portion adapted to receive an identification member 56according to one or more identification schemes. In this alternativeembodiment, mounting member 16A preferably has a middle receivingportion 58 in additional to the upper and lower portions 52, 54 that areeach adapted to receive an identification member 56. Additionally, tofurther increase the number of possible identification schemes thepolarity on any number of identification members 56 may be reversedusing techniques known in the art in order to provide another means ofdetecting one or more identification members 56 attached to mountingmember 16.

It should be understood from the foregoing that, while particularembodiments of the invention have been illustrated and described,various modifications can be made thereto without departing from thespirit and scope of the invention as will be apparent to those skilledin the art.

1. An administration feeding set in combination with a flow controlapparatus to deliver fluid from at least one fluid source to a patient,the flow control apparatus comprising a recess, upper and lower sensingdevices near the recess for detecting magnetic components ormagnetically-susceptible metallic components, and a microprocessoroperatively associated with a software subsystem; the administrationfeeding set comprising: tubing for flow of fluid along a fluid pathway;a mounting member on the tubing receivable in the recess of said flowcontrol apparatus, said mounting member having upper and lower receivingportions co-axial with said fluid pathway, each receiving portion beingadapted to receive an identification member; and one or moreidentification members selectively positioned on one or both of saidupper and lower receiving portions of the mounting member, eachidentification member comprising a magnetic component or amagnetically-susceptible metallic component; the arrangement being suchthat when the administration set is loaded on the flow control apparatuswith the mounting member properly positioned in said recess, the upperand lower sensing devices are positioned for detecting anyidentification members on the receiving portions of the mounting memberto permit identification of the administration feeding set as having aparticular functional configuration different from another functionalconfiguration; wherein said software system identifies said functionalconfiguration based on said positioning of said one or moreidentification members as sensed by said upper and lower sensingdevices.
 2. The combination set as set forth in claim 1 wherein a firstidentification member is mounted on one of said receiving portions and asecond identification member is mounted on another of said receivingportions.
 3. The combination set forth in claim 1 wherein said fluidpathway extends through the mounting member from one end of the mountingmember to an opposite end of the mounting member.
 4. The combination setforth in claim 3 wherein said tubing comprises a first tubing connectedto said upper receiving portions and a second tubing connected to saidlower receiving portion.
 5. The combination set forth in claim 1 whereinsaid fluid pathway extends through the mounting member, and wherein eachof said receiving portions of the mounting member surrounds said fluidpathway.
 6. The combination set forth in claim 5 wherein said tubingcomprises a first tubing connected to a said upper receiving portionsand a second tubing connected to said lower receiving portions.
 7. Thecombination set forth in claim 6 wherein said first tubing isstretchable and adapted to stretch when the administration feeding setis installed on said flow control apparatus.
 8. The combination setforth in claim 1 wherein said mounting member comprises a third co-axialreceiving portion adapted to receive an identification member.
 9. Thecombination set forth in claim 8 wherein a first identification memberis mounted on said upper receiving portions, a second identificationmember is mounted on said lower receiving portions, and a thirdidentification member is mounted on a third of said third receivingportion.
 10. The combination set forth in claim 1 wherein theadministration set further comprises a valve mechanism upstream fromsaid mounting member for control of fluid flow through said tubing, thevalve mechanism being adapted to engage said flow control apparatus, andwherein said valve mechanism is movable between at least two positionsincluding an open position permitting fluid flow and a closed positionpreventing fluid flow, and wherein the valve mechanism is configuredsuch that the valve mechanism can be disengaged from the flow controlapparatus when in said closed position but cannot be disengaged from theflow control apparatus when in said open position.
 11. The combinationset forth in claim 1 wherein said particular functional configuration isa feeding configuration and said another functional configuration is oneof a flushing configuration and a re-certification configuration. 12.The combination set forth in claim 1 wherein said particular functionalconfiguration is a flushing configuration and said another functionalconfiguration is one of a feeding configuration and a re-certificationconfiguration.
 13. The combination set forth in claim 1 wherein saidparticular functional configuration is a re-certification configurationand said another functional configuration is one of a flushingconfiguration and a feeding configuration.